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Au-MmNi_(3.2)Al_(0.2)Mn_(0.6)Co_(1.00)电极对NaBH_4电催化氧化
引用本文:王贵领,刘进程,孙克宁,曹殿学. Au-MmNi_(3.2)Al_(0.2)Mn_(0.6)Co_(1.00)电极对NaBH_4电催化氧化[J]. 电化学, 2009, 15(4): 450-453. DOI: 10.61558/2993-074X.2023
作者姓名:王贵领  刘进程  孙克宁  曹殿学
作者单位:哈尔滨工业大学市政环境工程学院,黑龙江,哈尔滨,150090;哈尔滨工程大学材料科学与化学工程学院,黑龙江,哈尔滨,150001;哈尔滨工程大学材料科学与化学工程学院,黑龙江,哈尔滨,150001;哈尔滨工业大学市政环境工程学院,黑龙江,哈尔滨,150090
基金项目:哈尔滨市青年创新人才基金(RC2006QN001021,2007RFQXG023); 哈尔滨工程大学基础研究基金(HEUFT07051,HEUFT07040)资助
摘    要:研究经NaOH处理了的MmNi3.2Al0.2Mn0.6Co1.0,再应用电沉积法制备Au改性的MmNi3.2Al0.2Mn0.6Co1.0催化剂对NaBH4的电催化氧化性能.SEM观察催化剂样品的微观形貌,线性伏安扫描法测定其电催化氧化性能,发现Au-MmNi3.2Al0.2Mn0.6Co1.0电极电催化氧化NaBH4电流密度为60 mA.cm-2,比在MmNi3.2Al0.2Mn0.6Co1.0电极的增加3.5倍.若对该电极在电解质中预浸泡10 h,则氧化电流密度可达到184 mA.cm-2.

关 键 词:直接NaBH_4燃料电池  储氢合金  金改性  电氧化
收稿时间:2009-11-28

Electrocatalytic Activities of Au-MmNi_(3.2)Al_(0.2)Mn_(0.6)Co_(1.00) for Borohydride Oxidation
WANG Gui-Ling,,LIU Jin-Cheng,SUN Ke-Ning,CAO Dian-Xue. Electrocatalytic Activities of Au-MmNi_(3.2)Al_(0.2)Mn_(0.6)Co_(1.00) for Borohydride Oxidation[J]. Electrochemistry, 2009, 15(4): 450-453. DOI: 10.61558/2993-074X.2023
Authors:WANG Gui-Ling    LIU Jin-Cheng  SUN Ke-Ning  CAO Dian-Xue
Affiliation:WANG Gui-Ling1,2*,LIU Jin-Cheng2,SUN Ke-Ning1,CAO Dian-Xue2(1.School of Municipal , Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China,2.College of Material Science , Chemical Engineering,Harbin Engineering University,Harbin 150001,China)
Abstract:In this work,the electrocatalytic activities of MmNi3.2Al0.2Mn0.6Co1.0,NaOH treated MmNi3.2Al0.2Mn0.6Co1.0 and Au-MmNi3.2Al0.2Mn0.6Co1.0 obtained after NaOH treatment(Mm: misch metal) for NaBH4 oxidation were reported.The electrodes were prepared by electrodeposition,their morphologies were analysized by SEM,their electrocatalytic properties were studied by the linear sweeping test.It was found that the oxidation current density of the Au-MmNi3.2Al0.2Mn0.6Co1.0 was 60 mA·cm-2,it was 3.5 times higher than that at the MmNi3.2Al0.2Mn0.6Co1.0 electrode.In addition,the oxidation current density at the Au-MmNi3.2Al0.2Mn0.6Co1.0 electrode immersed in the electrolyte solution for 10 hours was 184 mA·cm-2.
Keywords:direct borohydride fuel cell  hydrogen storage alloy  Au modified  electrochemical oxidation  
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